Home / 15,030-20,741.40-8,746.56

Finding the Fourth Proportional to 15,030, 20,741.40 and 8,746.56

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Solution

The fourth proportional to 15,030, 20,741.40 and 8,746.56 is: 12,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030 : 20,741.40 = 8,746.56 : x
  2. Step 2: Convert to fraction form
    15,030/20,741.40 = 8,746.56/x
  3. Step 3: Cross multiply
    15,030x = 20,741.40 × 8,746.56
  4. Step 4: Simplify right side
    15,030x = 181,415,899.58
  5. Step 5: Solve for x
    x = 181,415,899.58/15,030
  6. Step 6: Final answer
    x = 12,070.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.